UVA - 489 Hangman Judge

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#include <bits/stdc++.h>
using namespace std;
string s,s1;
int W,Le;
int f,cas;
void guess(char c)
{
    int t=1;
    for(int i=0; i<s.length(); i++)
    {
        if(s[i]==c)
        {
            f--;
            s[i]=' ';
            t=0;
        }
    }
    if(t==1)
    {
        cas--;
    }
    if(cas==0)
    {
        Le=1;
    }
    if(!f)W=1;
}
int main()
{
    int ans;
    while(cin>>ans>>s>>s1&&ans!=-1)
    {
        cout<<"Round "<<ans<<endl;
        Le =0;
        W=0;
        f=s.length();
        cas=7;
        for(int i=0; i<s1.length(); i++)
        {
            guess(s1[i]);
            if(W||Le)break;
        }
        if(W)cout<<"You win."<<endl;
        else if(Le)cout<<"You lose."<<endl;
        else cout<<"You chickened out."<<endl;
    }
}